mailey



July 10, 1928. 1,676,793

R. D. MAILEY ELECTRIC VAFOH LAMP Filed Feb. 1, 3.924

INVENTOR S A NEY .Patehted July 10, 1928.

UNITED sT TEs; PATENT ()FFlI-i-QEEL BOY pMA IILEY; oF'EASq! ORANGE, NEW. JERSEY, ASSIGNOR fro coqrtzngzawli} mam 'mzc COMPANY, or nonoxnn, NEW .mmsrwz, A' CORPCIRATIO N or JERSEY.

ELECTBIQ V5203 LAM? "Applicatiol'i flied febtuary. 1, 1924. serfialllz'a. 589. 521

My present .inventiopu relsites to ethod and means for starting'vapor elect-rte -are-'- devices in which the vgporizgtiQn ofthe aj'c path medium is initiated oracgelerate'd for 6 thepuppo se' difaceelemtin'g the' stfirting of the deytce bym eariSfoi heat generated with 7 current from the lamp current main or cutrerit" from; an aqxiliax y source: It r'elates further t'o sueh 'an azppalqgtps in which the 0 hefi'tin coil ;ishai1t0gpi1tica ly deenergized' u on t e normal bpemtj op fthelamp-"am'l t e 'flbwjbf alnotimal oi predetermined "current" theiethnou h otattainment of normal voltage wus imp! .1; re a s pa emery. WP E if the;

I ard- '1' pi t pp w fished throtigh thelz lin p by. causin the-men cury'thereuf to cnn u't thecatho e andpthe anode. by 1mmlentu ily depressing the a node end of thelan'xp and" t h,e heater ii' zi'utemziti! 'cally disennected, froth- 5mphsauceznpqn the att'aitil'nenbb'l' 'nqritija loperatingeondi i tions within the lll l iilp'f- I.

11. is an'ob'eet. of w irivehtionto. v-rov'gdje method and means or "cutting dam! theri t" thereof anti s-means f und. the :Stiiblis 1 jthg'ough-betweetftste n jmeaiis f rgdis ionnec ng said the-fittainmeiifi n 9L1 repeating gmd'legd V 19" connected on jside negtive hard .7 r.

- side of switch 17, throu h lead 18, lead 23, ,to-terminal24and on tie other side from the positive side of switch 17 through lead 26, leady27, contact 28, armature 35, pivot connection 36, lead 41, to terminal 25, the

spring 37 fixed at oneend to armature 35 on one side of pivot 36 opposite to contact 28 and at its other end at 39 to vertical surface 5 tends to hold said armature 35 in the position in which contact is made between it (armature "35) and contact 28. Across the terminals of the lamp, the sole noid .491is connected-from lead through lead 47 on one side and from lead 32 through 16 {lead 48 on itsoth'er 'side. This solenoid when switch 17 is'closed and lamp 2 has attained -its normal operating characteristics,

in-which the voltage therethrough has at gtained its normal value, functions to actuate 20 said armature to move it from the posi- =tion in which it contacts with contact 28 for the purpose of disconnecting and deenergizing heating coil 2.

the operation of the embodiment 0f :5 my invention shownvin the drawing to start' the lamp switch is closed and handle 46 01 panel 3 depressed toforin mercur connec- 'tion between cathode 1'2 andan e 14 and then released to start an are between the so mercur 13 and anode 14 as the mercury again ows away from the anode.

On the closing of'- the switcli- 17' heating coil 2 is energized and by heating the mercury 13 of the lamp the starting thereof is 35 accelerated through the rapid production of a vapor'mercury ath of the required con-' ducting characteristics} As the mercury is vaporized the pressure in the body of the lamp increases with the result that the mer- 40 cury body l3 is moved into the cathode chamber 42 of the lamp. The solenoid-49 is so designed that the strength thereof upon the movement of mercury 13' into chamber 42 and the increasein the voltage across the 5 terminals of th'eQlam'p andconsequently across the solenoid attains a -value "great enough to move armature 35 ,;agai'nst spring 37 and from contact with co'ntact'28- where by the heating coil 2 is deenergizedr, Said o solenoid 49 will continue to'hol dtthe heater circuit openas lono jas nor'mal operating voltageismaintaim-I across the'ter the lamp but ""l all' -armature 135 an electric ,devfice d'f jtl which consists in passip g exit through said device and .thrpug'h, a so urce of s heat.

' with "switch inoperative" relation to said switch, a spring lte idiiig t hol switch in the rent, means for starting current flow through the device, means tending to hold said'switch in the closed position, and means responsive to voltage changes in the device after starting for opening said switch.

3. In combination with an electric vapor arc lamp, a source of current therefor, an electric heater therefor,connected across the mains thereof, and means responsive to volttage changes across said-lamp-for automaticilly rendering said heater inoperative upon t c operating conditions in said device.

4. In combination with-van electric vapor arc device, feed mains therefor, an electric heater connected a cross'said mains through a switch, and means responsive to voltage conditions in said device for opening said heater switchuponthe attainment of normal operating characteristics in the -lamp. l

5. Incombination with an electric vapor arc-lamp, feed mains therefor,- means for startin current flow through the lamp, a solenoi said lamp, an electric heater-about the cathode chamber of said lamp connected to a source of current through'aswitch which has attainment of predetermined or normal connected across the 'terininalsfof a magnetic armature inoperative relation 7 in operative 'relati'o' esaid solenoid "whereoperate to open; said e. terminals of by said selen'cidl'wi swit "h: and a spr d osi iq i.

connected aci'ossthe term nasa d 3 1 He'd whereby said solenoid will} 7 v closed-position,aipiyote I ort fori said lamp,;f'and'fa springahd or saidzsiipport for holding th'e' supporth. E the lampga Y electric heater connected tending to said said solenoid whereby said switch can lamp in the normal operating position of the to hold said switch open, a solenoid across lamp. said mains of said device and in operative 1v 8. .In combination with a vapor electric relation to said armature.

are device, a source of current therefor, Signed at Hoboken in the county of Hud- 5 means fu! starting current liow through the son and State of New Jersey this 31 day of device, an electrir heater therefor. connected January, A. D. 1924. through a switch across said rurrzn mains, an armature on said nwitch, means tending ROY D. MAILEY. 

